▎ 摘 要
NOVELTY - A hexagonal boron nitride substrate consists of boron nitride substrate layer and single atom layer. USE - Hexagonal boron nitride substrate used for manufacturing graphene nano belt used in electronic device (claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for manufacture of the hexagonal boron nitride substrate, which involves cleaving surface of boron nitride substrate, introducing mixture of hydrogen and argon into cleaved surface and annealing.